Asp.net mvc Can'；t将HttpFileCollectionBase转换为HttpFileCollection

我有部分看法：

<% using (Html.BeginForm("add", "home", FormMethod.Post, 
   new { enctype = "multipart/form-data" })){%>
   <input name="IncomingFiles" type="file" />
   <div class="editor-field"><%: Html.TextBox("TagsInput") %></div>
   <p><input type="submit" value="Create" /></p><% } %>

它将无法将我上传的文件与HttpFileCollection匹配，它们将显示为HttpFileCollectionBase。 如何获得视图以向我传递HttpFileCollection

我需要任何特定的参数吗

---

谢谢大家!

在行动方面做类似的事情。您不能将文件作为参数传递：

[HttpPost]
public ActionResult add(string TagsInput) {
  if (Request.Files.Count > 0) {
    // for this example; processing just the first file
         HttpPostedFileBase file = Request.Files[0];
 if (file.ContentLength == 0) {
      // throw an error here if content length is not > 0
      // you'll probably want to do something with file.ContentType and file.FileName
      byte[] fileContent = new byte[file.ContentLength];
      file.InputStream.Read(fileContent, 0, file.ContentLength);
      // fileContent now contains the byte[] of your attachment...
    }  
  }
  return View();
}

[HttpPost]
public ActionResult add(string TagsInput) {
  if (Request.Files.Count > 0) {
    // for this example; processing just the first file
         HttpPostedFileBase file = Request.Files[0];
 if (file.ContentLength == 0) {
      // throw an error here if content length is not > 0
      // you'll probably want to do something with file.ContentType and file.FileName
      byte[] fileContent = new byte[file.ContentLength];
      file.InputStream.Read(fileContent, 0, file.ContentLength);
      // fileContent now contains the byte[] of your attachment...
    }  
  }
  return View();
}